69 tri power surging - NCRS Discussion Boards

69 tri power surging

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  • kelly theaker

    69 tri power surging

    Just thought i would ask the board about a surging i am getting at low speeds and moderate acceleration, carbs have been rebuild by a reputable person and looking for the causes . The cam is not the original piece and could be causing some of the bucking as well as the 3.70 gears combo. Any thoughts
  • Clem Z.
    Expired
    • January 1, 2006
    • 9427

    #2
    Re: 69 tri power surging

    do you have a #65 power valve in the center carb because a lower number will cause a lean condition at part throttle. also make sure the idle mixture screws are at 1-1/2 turns open because they supply a lot of the fuel at low throttle openings

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